Window joining system



FIG. 1 is a front perspective view of the male half window joining system, showing my design, the rear view being a mirror image thereof;

FIG. 2 is a front perspective view of the female half window joining system, showing my design, the rear view being a mirror image thereof;

FIG. 3 is a front view of the partially assembled window joining system, wherein the male half of FIG. 1 and female half of FIG. 2 have been snapped together, and snap on covers are placed into their assembled position; and,

FIG. 4 is a finished assembly of my window joining system. 

The ornamental design for a “window joining system”, as shown and described in the Figures. 